You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Joris C.JC

Joris C.

Développeur Web|Python|Flask|FastAPI

€500/day
Paris, FR
8-15 years

Average response time: 1 hour

About Joris

I’m a Python/Flask developer with strong backend expertise.

For 7 years, I was the sole developer behind Family Cabs (Uber-for-kids), where I designed and coded the entire platform: backend services, APIs, dashboards, and real-time trip management. I handled everything from database modeling to deployment and scaling — supporting thousands of rides and helping the company reach €50k/month in revenue.

More recently, I developed Taxiger, a white-label SaaS for taxi fleets. I built the backend from scratch (Flask, PostgreSQL, REST APIs), implemented real-time geolocation tracking, dispatching logic, and multi-role access dashboards, while also integrating branded mobile apps.

Before that, I worked as an IT Project Manager and Engineer in healthcare, leading workflow automation, data integration, and critical backend systems at Institut Jules Bordet.

What I bring
• Backend expertise: Python, Flask, FastAPI, REST APIs, PostgreSQL.
• Product mindset: I’ve shipped and scaled products used by real customers.
• Automation focus: Turning manual processes into reliable, efficient systems.
• Founder experience: I know how to balance speed, quality, and business impact.

Who I work best with
• Startups looking for a hands-on technical partner.
• Companies wanting to modernize or digitize their operations.
• Teams needing a reliable backend developer who understands the bigger picture.

Let’s build something real together
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Fluent

Can work on-site
Paris (up to 50km), Lille (up to 50km)

Experience

  • taap.it
    FastAPI Python Developer
    SOFTWARE PUBLISHING
    May 2025 - March 2026 (10 months)
    Paris, France
    Built and led the entire API architecture of taap.it, transforming the product into a real developer platform powering internal apps and external integrations:

    - Designed and developed the full backend using FastAPI, covering authentication, workspaces, links, domains, pages, analytics, security, and a hybrid data model.
    - Built a versioned API system with a public external API for clients and a dedicated internal API for the mobile app and Chrome extension.
    - Created a maintainable, scalable codebase supporting high-frequency operations, JWT authentication, rate-limiting, and unified routing across external and internal APIs.
    - Implemented all core operations (link creation, tracking, domains, pages, workspaces, projects) with consistent error handling and production-ready documentation.
    - Powered the internal ecosystem by serving as the backend foundation for the mobile app and Chrome extension.
    - Managed the full delivery cycle: architecture, development, deployment, documentation, and continuous improvements.
    - Built and maintained the Mintlify documentation portal, delivering a clean, user-friendly, multi-language developer experience with interactive examples, onboarding guides, and polished API references.

    This role strengthened my ability to build robust API platforms, design multi-client architectures, and deliver backend foundations that scale across products and teams.
    FastAPI Python System Architecture Firebase MongoDB
  • Taxiger
    Flask Python Developer
    TRANSPORTATION
    April 2025 - Today (1 year and 3 months)
    Bruxelles, Belgium
    Built a white-label SaaS platform to help taxi fleets modernize their operations, from dispatch to driver management and customer booking :

    - Built the entire product end-to-end, with a strong backend focus using Python to power real-time APIs and mobile integrations.
    - Developed real-time location tracking and trip management logic for live dispatching.
    - Created a fleet operations dashboard with multi-role access (admin, driver, dispatcher).
    - Supported branded mobile apps for operators, backed by a clean, maintainable API.
    - Delivered a single-tenant architecture for secure, client-specific deployments.
    - Fully functional and actively demoed to early clients — now in the onboarding phase with first paying customers.
    Python Développement full-stack REST APIs SQL Logiciel en tant que Service (SaaS)
  • IHPO
    Flask Python Developer
    RETAIL (LARGE RETAILERS)
    June 2023 - September 2023 (3 months)
    Brussels Metropolitan Area, Belgium
    Designed and delivered a custom delivery booking system for all IHPO retail shops in Brussels, fully replacing manual processes with an integrated, tablet-based platform:

    - Developed the backend using Python/Flask, powering both admin tools and API endpoints for booking operations.
    - Built the customer-facing UI with Vue.js, enabling in-store delivery bookings via tablets.
    - Created a web-based admin dashboard for staff to manage and track all bookings centrally.
    - Integrated the system with the company’s existing delivery backend, ensuring real-time sync between frontend actions and delivery execution.
    - Improved efficiency, reduced wait times, and provided better visibility across all shop locations.

    Tech stack: Python, Flask, Vue.js, REST APIs & PostgreSQL.
    Python Vue.js flask PostgreSQL REST APIs

Recommendations

FU
FU
Former user and 1 other person have recommended Joris

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master of Physics
    ISIB - Institut Supérieur Industriel de Bruxelles
    2015
    Master, Génie physique et nucléaire

Skill set

Categories